4020228646 has 64 divisors (see below), whose sum is σ = 7589376000. Its totient is φ = 1557287424.

The previous prime is 4020228643. The next prime is 4020228661. The reversal of 4020228646 is 6468220204.

It is a super-2 number, since 2×4020228646² = 32324476732237986632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020228643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1372035 + ... + 1374961.

It is an arithmetic number, because the mean of its divisors is an integer number (118584000).

Almost surely, 2^4020228646 is an apocalyptic number.

4020228646 is a deficient number, since it is larger than the sum of its proper divisors (3569147354).

4020228646 is a wasteful number, since it uses less digits than its factorization.

4020228646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181.

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 4020228646 is about 63405.2730141587. The cubic root of 4020228646 is about 1590.0724682501.

The spelling of 4020228646 in words is "four billion, twenty million, two hundred twenty-eight thousand, six hundred forty-six".